Karius- Voluntary Motion Flashcards
What are 2 pathways important for reaching?
VIP (parietal cortex) –> F4
* add detail to map
V6A (superior parietal cortex) –> F2
* constructs related map
What does VIP do?
Creates rough map
What is the grasping pathway?
Anterior intraparietal area and PFG –> F5
* F5 fires with the goal, not the act
What section of the brain tells you if it appropriate to move?
Premotor cortex
- dorsal pathway - applies rules to determine if appropriate
- ventral pathway - F4,F5
2 divisions of the supplementary motor cortex?
SMA - postural control
pre-SMA - planning
What is in charge of postural control?
Supplementary motor area
What is in charge of planning what needs to happen next?
Pre-supplementary area
What part of brain is in charge of executive control?
Supplementary motor cortex
What part of the brain receives input and sends output?
Primary motor cortex
What does the cerebellum do?
Motion has been planned and it adjusts ongoing motion
Sequence complex actions
Learn complex actions
Correct force and direction
2 parts of spinocerebellum
Vermis - central region –> postural control
Either side of vermis –> force, direction, ballistic motion
Input spinocerebellum central region?
Vestibular
visual and auditory
efferent copy
Output spinocerebellum central region?
Interpositus n
Fastigial n
TO rubrospinal tract
Input spinocerebellum side region?
Muscle afferent
Efferent copy
Output spinocerebellum side region?
Interpositus n
TO rubrospinal tract
